悄

used in 悄悄[qiao1 qiao1]

quiet / sad

悄 = 忄 + 肖 : The Queen of Hearts (qi) wants it to be quiet (悄) in the aorta (ao3), so she threatens the Little Prince (肖) with a flail (忄) to make him be quiet. It also makes him very sad (悄).

悄 character breakdown

悄
- 忄
- 肖
  - 小
    - 亅
    - 八
      - 丿
      - ㇏
  - 月
    - 二
      - 一
    - ⺆
      - 丿
      - ㇆
        
        一
        
        亅
  - ⺌
    - 小
      - 亅
      - 八
        
        丿
        
        ㇏

忄

xi̅n = xi + (e)n1

Kangxi radical 61 (心) as a vertical side element

Looks a bit like a flail.

肖

xia̅o = xi + ao1

surname Xiao / Taiwan pr. [Xiao4]

肖

xiào = xi + ao4

similar / resembling / to resemble / to be like

肖 = ⺌ + 月 : The aloe vera on the moon resembles the rose on the little prince's planet. Thus I'll represent this character by the little prince.

In the aorta's bathroom, the little prince misses his asteroid and his rose so much. To comfort him, Marie Curie gives him a moon and an aloe vera to remind him of home.